Graco Inc. GX-7A Paint Sprayer User Manual


 
Operation Basics
18 311321H
Daily Start-up
1. Connect air supply to gun.
2. Adjust air cap adjustment valve. Turn knob
counterclockwise to open valve and clock-
wise to close valve
3. Adjust rear seal retainer.
4. Open both manual valves. See Coupling
Block section, page 13.
5. Set safety stop to OPEN.
6. Test spray on disposable surface.
Daily Shutdown
1. Set safety stop to OPEN.
2. Close both manual valves.
3. Disconnect air supply from gun.
4. Shutdown proportioning unit as required.
See Proportioner manual.
5. Clean as required. See Clean Spray Gun
Procedure, page 20.
Ensure gun is attached to coupling block and
air hose. Ensure proportioning unit is at
desired temperature and pressure. Properly
ground equipment to avoid static sparking
that may result in fire or explosion.
Follow daily shutdown procedure when
gun is out of service for any length of time,
or for mid- or end-of-day service. See
Clean Spray Gun Procedure, page 20.
Do not disassemble gun daily for cleaning
if it is operating properly. However, if gun is
removed from coupling block, it must be
flushed and cleaned thoroughly.